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Agent skill

Review

by shopsys in shopsys/shopsys

Deep, comprehensive code review with fresh eyes - zero tolerance for mistakes.

Custom licenceAuto-check passedDevelopment

Install Review

skills CLI
$ npx skills add shopsys/shopsys --skill review -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install shopsys/shopsys review --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/shopsys/shopsys.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/review .claude/skills/review && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
review
GitHub stars
350
Token cost
~1.7k tokens
SKILL.md length
799 words
Files
1
Skills in repo
38
Repo updated
First seen
Licence
Custom licence

At a glance

Deep, comprehensive code review with fresh eyes - zero tolerance for mistakes.

  • Works in 3 steps: Gather Context → Deep Verification (FRESH EYES) → Standard Review Checklist
  • The user asks to review code
  • SKILL.md covers Phase 1: Gather Context, Phase 2: Deep Verification…, Phase 3: Standard Review… and Severity Guide, plus 2 more sections
  • Calls git

What it does

Review is an agent skill from shopsys/shopsys. Deep, comprehensive code review with fresh eyes - zero tolerance for mistakes. Use when the user asks to review code, do a code review, or invokes /review.

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Code review. The repository describes itself as: Main repository for maintaining Shopsys Platform packages. Open for ISSUES and PULL REQUESTS.

When your agent uses it

  • The user asks to review code
  • Do a code review
  • Invokes /review

Example prompts

  • “/review”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Gather Context
  2. Deep Verification (FRESH EYES)
  3. Standard Review Checklist

What it can do on your machine

Read from SKILL.md and the folder at commit 3c4bf38. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Review loads about 1.7k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 799 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~41
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 799 words (~1,701 tokens).

“MINDSET: You are a senior reviewer seeing this code for the FIRST TIME. Forget all prior context. Read every line as if you've never seen it before. Question everything. Trust nothing.”

— opening of SKILL.md by shopsys, Custom licence
name
review
user_invocable
true
version
1.0.0

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/review of shopsys/shopsys.

Open the folder on GitHubat commit 3c4bf38

Compare with similar skills

Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Review compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Review this skillshopsys/shopsys350—~1.7kAutomated safety check: PassCustom licence
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT
Backend Code Reviewlangflow-ai/langflow156k—~3.5kAutomated safety check: NotesMIT
Understand Diff AnalysisEgonex-AI/Understand-Anything86k1 repos~1.4kAutomated safety check: PassMIT
Mole Bug Patternstw93/Mole70k—~2kAutomated safety check: PassGPL-3.0

Similar skills

  • PR Babysitter

    openinterpreter/openinterpreter

    Watches an open GitHub pull request until it merges, handling review comments, diagnosing CI failures and retrying flaky checks along the way.

    69k GitHub starsUsed in 3 repos~4.2k tokens
    DevelopmentAuto-check passed

  • Code Review Checklist

    shareAI-lab/learn-claude-code

    Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.

    78k GitHub starsUsed in 5 repos~1.1k tokens
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  • Backend Code Review

    langflow-ai/langflow

    Review backend code for quality, security, maintainability, and best practices based on established checklist rules.

    156k GitHub stars~3.5k tokensUpdated today
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  • Understand Diff Analysis

    Egonex-AI/Understand-Anything

    Reads your git changes or a pull request against a prebuilt knowledge graph of the project to explain what changed, which components are affected and what is risky.

    86k GitHub starsUsed in 1 repo~1.4k tokens
    DevelopmentAuto-check passed

  • Mole Bug Patterns

    tw93/Mole

    A catalog of recurring bug shapes in the Mole Mac cleaner, used to review safety-sensitive diffs for deletion safety, unbounded commands, shell traps and weak tests.

    70k GitHub stars~2k tokensUpdated today
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  • Backend Code Review

    langgenius/dify

    Reviews backend code under api/ for concrete, reproducible defects, routes to rule packs for architecture, schema, repositories and SQLAlchemy, and ranks findings from P0 to P3.

    158k GitHub stars~676 tokensUpdated today
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More from shopsys/shopsys

All 38 skills in this repo

  • Adhoc PR

    shopsys/shopsys

    Ad-hoc Pull Request Publisher — commits the current changes, pushes the branch, opens a GitHub pull request against the repository's default branch, and creates a matching SSP Jira issue in the…

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  • Commit

    shopsys/shopsys

    Interactive commit workflow — analyzes all uncommitted changes, proposes atomic, logically grouped commits with messages following commit-conventions, and executes them only after the user approves…

    350 GitHub stars~771 tokensUpdated yesterday
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  • Create Enum

    shopsys/shopsys

    Create a Shopsys-style enum (a class extending AbstractEnum with public typed constants, NOT a native PHP enum).

    350 GitHub stars~1.9k tokensUpdated yesterday
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  • Docs Researcher

    shopsys/shopsys

    Searches and analyzes documentation to provide relevant information for development tasks.

    350 GitHub stars~1.5k tokensUpdated yesterday
    Auto-check passed

  • PR Comments

    shopsys/shopsys

    Work with GitHub PR review threads — list unresolved comments as a digest (who is waiting on whom), reply to threads, and resolve/unresolve them.

    350 GitHub stars~2k tokensUpdated yesterday
    Auto-check passed

  • PR Description

    shopsys/shopsys

    Generates a PR description focused on business value using the project's PR template.

    350 GitHub stars~1.7k tokensUpdated yesterday
    Auto-check passed

Categories

Questions about Review

What does Review do?

Deep, comprehensive code review with fresh eyes - zero tolerance for mistakes. Review is an agent skill from shopsys/shopsys. Deep, comprehensive code review with fresh eyes - zero tolerance for mistakes.

When should I use Review?

Review fits situations like: the user asks to review code; do a code review; invokes /review.

How do I install Review in Claude Code?

Run `npx skills add shopsys/shopsys --skill review -a claude-code`. Or copy the skill folder (.agents/skills/review in shopsys/shopsys) into .claude/skills/review in your project. Claude Code loads it when a task matches its description.

How do I install Review in Codex?

Run `npx skills add shopsys/shopsys --skill review -a codex`. Or copy the skill folder (.agents/skills/review in shopsys/shopsys) into .agents/skills/review in your project. Codex loads it when a task matches its description.

Can I use Review in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add shopsys/shopsys --skill review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/review, .gemini/skills/review, .github/skills/review and .opencode/skills/review in your project.

What does Review need to run?

Going by SKILL.md and its folder, Review needs the command-line tools its instructions call (git).

Does Review access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Review safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Review use?

Review has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Review use?

About 1.7k tokens (SKILL.md is roughly 6.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Review?

Skills that share tags, products or a category with Review: PR Babysitter (openinterpreter/openinterpreter, 69k stars), Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Backend Code Review (langflow-ai/langflow, 156k stars) and Understand Diff Analysis (Egonex-AI/Understand-Anything, 86k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Review?

shopsys (a GitHub organization) maintains it in shopsys/shopsys, which has 350 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 7, 2026.

Source: shopsys/shopsys on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.